A Symposium on World food prod. by means of sust. agr. : the role of crop prot., held in collaboration wich the Centre for Res. on Sust. Agr. and Rural Dev. at the Fisherman's Cove Hotel, Madras, India 30 Nov. -2 Dec. 1992
(1993)
Papers from a Symposium held in Scopje on 31st October 1997 on the Occasion of 30th Anniversary of foundation of the Makedonian academy of sciences and arts
(1998)